Ethics, data and visualization

I don't think it's possible to put together a visualization - by its nature, some kind of summation of the data - without putting a frame on it, i.e. editorializing in some way. If you have some question, and you break it down by age, or by sex, or by political affiliation, whichever you choose colours the data's interpretation. Invariably you can't choose every possible summation, and often when working with data about people you can't supply the raw underlying data without compromising anonymity.